DUAL-SOURCE POWER SUPPLY
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United States of America Patent
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Issued Date -
Jun 8, 2017
app pub date -
Dec 7, 2015
filing date -
Dec 7, 2015
priority date (Note) -
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Abstract
A power supply for providing power to a load includes an alternating current (AC) power supply having a positive output and a negative output connected to a common ground; a direct current (DC) power supply connected to a same common ground as the AC power supply; a rectifier connected to an output of the AC power supply and the common ground that converts AC power to DC power an provides to an output of the power supply; a connection control circuit coupled between the DC power supply and the output that connects the DC power supply to the output when the AC power supply is inactive.
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